Schqten



l. VAN BUNSCHOTEN.

Camphene Lamp. No. 8,784.

PatentedY March 2,` 1852.

" To ctZZwhom it may1 concern;

` so far, are all made as usual.

cAMPHENE-LAMP. j

seecieatiqn of Letters Patent No. 8,784, dated` March e, 1852.

Be it known -that I, ISAAC VhNl BUN- sc HoTEN, of the city, county, and State 'of New York, lampfmanufacturer,have 1nvented, made, `and applied to use certain new and useful Improvements in the Construction of CampheneiLamps for the Purposes of Preventing the Camphene from Spilling Out and Exploding andalso EX- t-inguishing the Light by Water in Case the Lamp is Upset; and I hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to theannexed drawing, making part of this specifcation, whereini `Figure l is a vertical section of my improved lamp. Fig. 2 is a section of the upper end of the burner, showing the means I use to Ell the extinguishing water chamber. i

The Iwike marks of reference denote the same parts.

a, is a reservoir, of any convenient character, supplying by pipes; 1, the wick receiver, which is formed by an outside cylinder 2, and an inside cylinder 3; b, is the drip cup, with screw 0, and rod to the button d; t, is the supply hole to the reservoir; e, is the cone, and f, the glass: these parts, 5, is the wick tube receiving the wick g. In this form, so far as described, explosions often occur, from the reservoir being filled, while the lamp is burning, which causes a puttl of va or, or liquid, to ascend between the air tu e, 3, and wick tube 5, which often catches light drawing the flame down the air tube, and heating the cylinder 3, so as to cause the fluid to boil over, yand `the flame is made worse; and if the lamp is moved carelessly, or tipped while in use,

i the liquid sometimes shakes over this tube,

and catches fire. My improvement is intended to prevent these accidents, by making aV tight joint, between the air tube 3, and the wick tube 5, to e'ect this, I attach a tube 6, withinl the tube 5, at its upper end, eX-

Y `tending downward, and made small enough,

at its lower end, to enter within the air tube 3, this tube 6, is fitted, before being attached in place, to the wick tube 5, with a leather packing 7, secured by turning the end of the tube 6, over, onto its lower edge;

thisqpacking `as the wick `tube is pushed down,"ltake`sithe air tube 3, as shown, forming a tight joint, which eifectually obviates thedangers heretofore mentioned. It will be seen, that this packing may be around the outside ofthe upper end of the air tube 3to take-the wick tube 5, or attached `on the inside of' the wick tube itself, or may be around lthe, inside of the airatube, at its upper end,to takeithe tube 6,` although I prefer that shown. These means effectually prevent the escape of the fluid, under all ordinary circumstances, as the wick will effectually prevent the escape of camphene, through itself, to any amount to cause an explosion; andthe next part of my invention consists of means to put out the flame, in casethe lamp is upset, or accidentally tipped, so as to cause danger of explosion. To effect this object, I surround the outside tube 2, with a water chamber 8, that is formed of a size to contain suflicient water. The upper end of this chamber is formed as shown, with the upper edge, or lip, turned inward, and the top of the tube 2, is turned slightly outward, or may have a strip of metal placed around it, .rising slightly higher than the top of the tube 2, so as to, allow a little space, between the top edge of the tube 2, and the wick g, to prevent t-he liquid, as it rises on the wick, running over into the chamber 8; this chamber 8, is to be lled with water, by placing a small conical shaped stopper 9, into the tube 2, so as to close it, as shown in Fig. 2, and pouring water onto the cone 9, which causes it to pass into the chamber 8.

The operation of this lamp, when properly trimmed, is, tha-t if the lamp is thrown down, or falls by any accident, the water is instantaneously thrown out onto the wick, by a jet all around, which immediately extinguishes the light, and my means of preventing the escape of the camphene into the tube 3, acts in concert with the water chamber by retaining the camphene, in case of accident, while all flame is putout, by the very act of upsetting or jarring the lamp.

The water chamber 8, may be made as a jacket, stopping a little short of the top of the wick tube 2, so as to allow it to be filled with water, without the conical stopper 9, and a sleeve, fitted to slide on, with remm) smrwsmemea its upper end formed as shown, to direct the water onto the flame; and the top of the A water chamber 8, may be made straight,

although not so good, as when formed with a lip, as shown, to direct the water to the flame. It willv be seen, that this Water chamber does not -want replenishing often, as

there is only the evaporation from a small surface, to take the water off; but this, of

course, must be kept suiiiciently lled forV What I desire to secure by Letters Patent is- 1. I claim the application of a suitable elastic packing, between the wick tube 5, and air tube 8, attached in any convenient manner, in camphene lamps, for the purposes,

and as described and shown.

2. I claim the application of a suitable Y ring, or chamber, around the wick tube, to

Areceive or conduct water, or other fluid, to

the wick so that the light is extinguished in case of accident, as described and shown..

In witness whereof, I have hereunto set Vmy signature, this tenth day of November,

one thousand eight hundred and fifty-one. ISAAC VAN BUNSCHOTEN.

Witnesses:

W. SERRELL, LEMUEL W. SERRELL. 

